Answer:
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Step-by-step explanation:
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sin(B) = 4/5
cos(B) = 3/5
tan (B) = 4/3
soh cah toa
sin(12°)
Because sine and cosine are cofunctions, we can use the relation sin(90° - θ) = cosθ to show that cos(78°) = sin(90° - 78°) = sin(12°)
